• Title/Summary/Keyword: Fire extinguishing system

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Trends of Onboard Fire Extinguishing System (선박용 소화설비의 국제동향)

  • Kim, Mann-Eung
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • pp.126-127
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    • 2005
  • This paper provides information on the current issues and the progress of on-going researches relating onboard fixed fire extinguishing system in the IMO Sub-committee on Fire Protection. And also prepares to introduce the recent amendment to regulations and technical trends of the water mist fire extinguishing system and high expansion foam system.

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The Report on Test Results of CO Fire Extinguishing System ($CO_2$ 소화설비 구성부품 성능시험보고)

  • Kim, Gi-Ok;Lee, Chan-Ju;An, Byeong-Ho
    • Fire Protection Technology
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    • pp.5-12
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    • 1993
  • This report is explained about test results of carbon dioxide extinguiching system components and pack-age type system (Kits) for automatic fire extinguishing system. A carbon dioxide system may be used to protect one or more hazards or hazards by menas of directional valves. Package system shall be installed to protect hazards within the limitations. The testing program was progressed by three items, external oppearance test, performance test and Total Flooding Fire Extinguishing System test. The object of this report is present the problem which apperar from the analysis of test results.

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Effectiveness of Friction Loss Calculation Used for Water Mist Fire Extinguishing System on Marine Vessels

  • Lee Kyung-Woo;Kim You-Taek;Lee Young-Ho;Kim Mann-Eung
    • Journal of Advanced Marine Engineering and Technology
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    • v.29 no.1
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    • pp.86-97
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    • 2005
  • Nowadays, Water Mist Fire Extinguishing System is increasingly used in maritime field for various application. The fire extinguishing capability of the system should be verified by hydraulic calculation in the same manner as the conventional water based fire extinguishing system such as sprinkler system. water spray system and etc. Additionally, the review of effectiveness of friction loss calculation method used for hydraulic calculation is needed because the pipe flow characteristic of its piping system has higher Reynolds number than that of the conventional system. In this paper the review work was carried out based on the NFPA Code 750.

Design and Implementation of the Automatic Fire Extinguishing System Based on the Ignition Point Tracking using the Flame Detecter (화재감지기를 사용한 발화점추적기반의 자동소방시스템 설계 및 구현)

  • Paik, Seung Hyun;Kim, Young Wung;Oh, Se Il;Park, Hong Bae
    • IEMEK Journal of Embedded Systems and Applications
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    • v.8 no.3
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    • pp.155-161
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    • 2013
  • To reduce the personnel and material loss caused by fire, we propose the automatic fire extinguishing system based on the ignition point tracking using the flame detecter. This automatic fire extinguishing system is composed of the flame detecting system and the fire extinguishing system based on the water cannon. We study the method for the ignition point tracking and the automatic fire extinguishing using the water cannon and the flame detecter. The flame detecting system for the early fire detection and the ignition point tracking has to be satisfied the requirement of the detecting range and the flame detection time. So we study the signal process algorithm for an improvement of the flame detecting system.

A Study on the Design Program Development of the Carbon Dioxide Fire Extinguishing System Using an Optimization (최적화 기법을 이용한 이산화탄소 소화설비의 설계프로그램 개발에 관한 연구)

  • Lee, Dong-Myung
    • Fire Science and Engineering
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    • v.28 no.3
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    • pp.1-9
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    • 2014
  • In this study, it was developed to the design program optimization the design factors of the carbon dioxide fire extinguishing system on the basis of design theory for the carbon dioxide fire extinguishing system, national emergency management agency (NEMA) notice No. 2012-11, KS B 6261 and steepest descent method of optimization. The design program was developed to C++ compiler based on established the logic and algorithms and was to operate on the Windows operating system. The optimization of design factors for the carbon dioxide fire extinguishing system are minimized subject to constraint on agent flow rate, emission time and design variables (pipe size etc.). It was verified to the design program performance for test system, and it was provided to the foundation for optimal design in fire fighting field. Also, it is considered to improve the efficiency of the fire extinguishing system and to maximize of fire suppression as the construction of the carbon dioxide extinguishing system based on the optimal design factors.

The Study of a Atomizing Characteristics of a Nozzle in a Fire Extinguishing System for using CFD (CFD를 이용한 소화시스템 노즐의 분무 특성에 대한 연구)

  • Choi, Goan-Soo;Jung, Young-Kwon;Kim, Young-Soo;Kim, In-Kwan
    • Proceedings of the SAREK Conference
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    • pp.1184-1189
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    • 2008
  • This paper is a study about characteristics of the SSC-1 nozzle, which is used in a fire extinguishing system in a ship. Through this paper, we can find that the traces and elements’ distributions obtained from experiments are as the same as the simulation analysis results of CFD program. At the point of 100mm, the $\alpha$ is 34.9 in the CFD analysis, and it is 32.5 in the experiment. This shows that there is no big different between the CFD analysis and the experiment result. And the average elements velocity is similar to the SMD.

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Flame Extinguishing Characteristics of Clean Gaseous Agents and Effects of Additives (가스계 청정소화약제의 소화특성과 첨가제에 따른 영향)

  • Shin, Chang-Sub;Kim, Sung-Min
    • Journal of the Korean Society of Safety
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    • v.23 no.6
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    • pp.95-99
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    • 2008
  • Halon was known as a cause of the ozone layer destruction. In 1987, it was designated as one of the ozone-layer-destroying materials in the Montreal Protocol. Therefore substitutes of Halon agent has been developed including inert gas extinguish system, which is one of the most widely used fire extinguishing system. This study intended to increase the efficiency of inert gas extinguishing agent by using inert gas additives. As IG-541 shows high extinguishing power, the experiment was performed to measure the effects of gaseous additives to it. Cup-burner fire extinguishing apparatus was used with n-Heptane fuel. Among many of pure inert gaseous agents, Helium showed the most excellent extinguishing power. When Helium was added to IG-541, fire extinguishing power was increased and the concentration of oxygen in chimney also risen. By adding Helium to IG-541, the effectiveness of inert gas fire extinguishing system is able to be increased.

A Study on the Development of Fire Extinguishing System for Machinery Spaces of a Small craft (무인기관실에 효과적인 자동소화장치개발 관한 연구)

  • Lee, Chan-Jea;Kang, Dae-Sun;Kim, Dong-Suk;Kwark, Ji-Hyun
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • pp.127-128
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    • 2006
  • A study developing the dry powder fire extinguishing system inside the simulated machinery spaces of small boats was performed. Fire tests were conducted inside the compartments having volumes 2.9, 4.5, $8m^3$ respectively. The openings and fans were established on the walls of the compartments. Diesel oil was used for the test fuel, In addition fire extinguishing nozzles using dry powder were installed downward at ceiling and horizontally at the wall or conner. All fires in the test were extinguished under system activation and there was no reignition.

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A Study On The Development Of An Automatic Fire Extinguishing System For The Engine Compartment Use Of Automobiles (자동차 엔진 화재용 자동 소화 시스템 개발에 관한 연구)

  • Lim, Sung-Muk;Jung, Ki-Chang;Kim, Hong;Kang, Young-Goo;Lee, Chang-Sub
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • pp.57-61
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    • 1996
  • Our goal was to make a cost-effective automatic fire extinguishing system for the engine compartment use of automobiles. We designed this system for the engine compartment. This system consists of 1)foam extinguisher, 2)four nozzles, 3)a pipe arrangement, and 4)an extinguishing device which is equipped with a glass bulb as detector. First and foremost, the extinguishing device was carefully designed to keep the system cost to a minimum. Second, a AFFF foam extinguisher was used because no other fire-fighting agents proved effective against fire in the engine compartment. The AFFF(Aqueous Film Forming Foam) agent which was used in the extinguisher is the 3M company's Light Water. We sought, however, to make other foams by using Halon 1301 and Halon alternatives such as HCFC Blend A, HFC-227ea. We selected these alternatives instead of air in order to raise the expansion ratio of the AFFF agent. By these means we discovered that it is possible to increase the expansion ration of the AFFF agent up to 44:1. We then demonstrated that our automatic fire extinguishing system is the most effective and lowest cost-system yet devised for passenger cars.

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Implementation of Automatic Extinguishing System for fire suppression of vehicle (차량 화재 진압을 위한 자동 소화 시스템 구현)

  • Ryu, Hye-Yeon;Kim, Man-Ho
    • Journal of the Korean Society of Industry Convergence
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    • v.22 no.2
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    • pp.227-233
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    • 2019
  • In recent years, vehicle fires account for the second highest rate after residential fires. It accounts for more than 10.7% of the total fire occurrence rate. Vehicle fires are very difficult to evolve at an early stage. Most of the vehicles are burned down in the event of a fire, resulting in a lot of physical and personal damage. In the EU and other countries, efforts are being made to install automatic fire extinguishing systems in preparation for vehicle fires. In addition, since the automatic fire extinguishing system applied to a vehicle must operate in a moving state of a car, a method for detecting a fire is needed. Therefore, this paper proposes a structure of an automatic fire extinguishing system that can evolve a fire when a fire occurs in a commercial vehicle among various vehicles. Especially, it confirms the feasibility of the automatic fire extinguishing system simulated in the laboratory environment and confirms its applicability.